Locking device for interfitting members



' July 13, 1948. v H. s. CHARLES LOCKING DEVICE FOR INTERFITI'ING MEMBERS Filed 0ct.-1 8, 1947 Hai \S cilar7es I I I E 47:

Patented July 13,1948

- 'fUNlTED STATES PATENT..." OFFICE LOCKING DEVICE mammmme- MEMBERS 1 W Howard Spencer Charles, Toronto, Ontario, Can- 7 ada, assignor of one-half. to Henry Charles Morris, Toronto, Ontario, Canada p j Application October 18, 1947, Serial No. 780,664

aciaims. (o1. 28'i-119) My invention in its general aspect relates to i locking devices for interfitting connections particularly of the type in which telescopic members are secured together.

An object of the invention is to provide a highly emcient and serviceable locking device for telescoped members, and one which is easy to operate and inexpensive to manufacture.

- A further object of the invention is to provide a reliable'locking device of the character referred to and one which functions to positively lock telescoped members in interfitting connection without any likelihood of their becoming inad- "vertently detached.

- The invention comprehends a locking device in which a pin is transversely fitted in a socket member eccentrically within its bore, and in which-a male member is telescoped in-the bore, the telescoped end thereof being provided with a locking passage in which said pin is received, said locking passage being disposed'at oneside of the telescoped end to extend parallel to the axis thereof from a front stop face rearwardly to a thrust face which abuts said pin under pressure supplied by a spring. Said stop face is continued around the telescoped end and at the opposite side there is provided a flat which extends to the end face of the telescoped end to form a guide fpas's'age which communicates with said locking passage by means of a circularly extending groove adjacent to said stop face.- The structure provides for attachment of the male member by telescoping its end in'the bore-of the socket member with the guide passage positioned in register with the pin to bring the stop face into abutment with the pin. Then the male member is turned through an angle of 180. ment' the pin passes through the circular groove and the locking passage receives the pin. The springthen acts to-force the male memberoutwardly until the thrust face engages the pin. The male member is thus locked to the socket in a positive manner and cannot be turned in either direction.

The invention affords a secure locking device which has several uses. For instance, it is admirably suited for fastening the handle to a fishing rod. It is also susceptible of use for making a detachable connection between the head and the shaft of a golf club.

In the embodiment of the invention shown in the accompanying drawing the locking device is applied to a fishing rod.

In the drawing,

Fig. 1 is a fragmentary side view, partly in In the turning movesection, showing the rod secured in the handle by means of the locking device .of the present invention.

Fig. 2 is across section taken on line 22, of

Fig; 1., 1

Fig. 3 is a similar view to Fig. 1,.but shows how the'rod is telescoped in the handle. before it is turned to a locked position. I v

Fig. 4 is a plan view of the telescoping end. of

the rod. M

. Fig. 5 is a cross section on line 5-5 of Fig.4., a Fig. 6 isa side elevation of Fig. 4. Fig. 7 isan end view of Fig- 6. The reference numeral 8 denotes an ordinary fishing rod handle havingan' offset portion 9 forming-a seat for ,a reel. The forward end ID of the handle constitutes a rod-receiving portion and is in the form of a socket whose .bore is indicated at H. The inner end I2 of a rod, I3 is telescoped in said bore to provide an interfitting connection. I

In'carrying out the present invention the socket portion l0 ofv thehandle is provided with apin l4 transversely fitted therein. to project through the bore ll eccentrically thereof so as to be disposed at a side vthereof. Said pin is located, in the vicinity of the outer end of the borefand constitutes a fixed projection. A helical compression spring H is seated at the inner end of the bore.

-- The telescoped end I2.of the rod is cut away at one side to provide a locking passage l5 having a flat bottom face I6 parallel to the axis of the rod. The locking passage is of a depth to loosely receive the pin it and it is remote from the inner end face II. The forward end face It of the locking passageconstitutes a stop shoulder and the rear end face-I Sconstitutes a thrust shoulder.

Said stop shoulder I8 is continued around the telescoping end to the; opposite side thereof to a flat 20 by means of an adjacent lateral groove 2| which extends circularly and is of an arcuate cross section to accommodate the pin and allow it to pass therethrough when the rod is turned. Said fiat 2|! is of a depth to receive the pin and it extends from the stop shoulder l8 to the end face I! in order to form a guide passage.

In the use of the locking device the inner end l2 of the rod I3 is telescoped in the bore ll of the socket against the tension of the spring II and with the flat 20 positioned in register with the pin H so that the pin will be received in the The locking device is reliable and efficients;

Moreover it is inexpensive to manufacture and has the advantage that the telesc'oped 'n'iembers' are held against relative angular movement.

While the locking device hasibeen 'describedby way of example as applied to afishing rod it will 4 prising a socket element, a cylindrical member for telescoping therein, the socket element having a transverse pin eccentrically extending through its bore at a side thereof, the cylindrical member having a locking passage at one side, a guide passage at the opposite side and a circularly ex- .tending groove at the forward end; of the passages, Ftheilo'cking passage being spaced from the inner end face of the cylindrical member and being formed with a thrust shoulder for engaging the pin, the guide passage being open at said inner end face to admit the pin so that it can pass to' said groove and into said locking passage by a be understood that it is susceptible of other usesn What I claim is: i

1. A device of the class described comprising having an end telesco'ped in said bore, a pin carried by said first member transverselynprojecting into said bore ata side thereof, saidtelescoped end being cut away at one side toaprovide a locking passage in whichsaidspin is disposed, said locking passage extending longitudinallyof said itelescopedend and being formed with a stop shoulder. at its'forward end andua thrust shoulder at its rearward end isaiditelescoped end being formed'witha fiat opposite said locking passage, said flat extending forwardly from the extremity of.-said .telescoped end and terminating in a stop .turning qmovement of the cylindrical member, ,and a spring lodged in said socket element for urging the cylindr-ical member outwardly of the socket portion of said socket element to cause saidthrust shoulder to engage the pin.

a first member having a bore, a secondmember face alignediwithsaid stop shoulder, saidfiat providing a guide-passage .forsaid pin'andicom- 'municating with said lockingpassage by means of a forwardly disposed groove receptive to "said pin,.andmea'ns yieldablyurging said telescoped 'en'd' outwardly so thatsaidthrust shoulder is held in engagement with said pin.

2. A device of the class described comprising a first member having atbore, a second member telescoped in said bore thereofcandhaving an inner end face,-a' projection rigid-with said first member and disposed in said bore at a side thereof, said second member beingreduc'ed at a side to form a longitudinally extending'locking passage in which said-projection is disposed, said loc'kingp'assage being spaced 'fromsaid end'face and forwardly terminating, in a stop shoulder and rearwardly terminating in a-thrust face, said stop shoulder being continued around said second member'to'the opposite side thereof by means of an adjacentlateral groove receptive to said projection, said opposite side being reduced to" form a flat'which extends from said stop shoulder to saidend faceto'form aguide passage receptive to said projection, and a spring on said first member outwardlytensioningsaid second member'so that it will beyieldablyheld withsaid thrust-face engaged with-said projection.

3. A locking'joint of the class described,=-comralnAzdevice of the class described, comprising a socket section, a cylindrical section for telescopingtherein, the socket section having a transverse-pin therein at a side of its boreandhaving a spring for urging the cylindrical sectiongthe cylindrical section having an innerendface and having a longitudinal flat at one of its sides spaced fromsaid end face and terminating in a forward end'face and a rearward end face toform alocking passage receptive to .the pin, theforward'end face forming a stop shoulder-andthe rearward endface forming a thrust, shoulder, the tcylindrical section also having an ,arcuate groove receptive-to the pin, said groove beingdisposed at the forward end'of the locking passage,=said cylindrical member also having .a,.longitudinal flat Opposite said first mentioned flat, and :extended from said end-face to merge into said groove to i provide a guide passage forwardly terminating in-a stop shoulder, whereby the cylindrical member can be telescoped in the-socket section with thev guide passage aligned with the pin and j-then turned so that the pin -will;pass through the groove :into the locking? passagefor abutment withthe thrust shoulder thereof when the cylindrical member is forwardly urged by: the .spring,-whereby to bringabout, alocking engagement. l i

5. A device asset forth in claim,4,,in swhich thespring is seated in thesocket sectionforengaging the, inner end-face of, the'cylindrical 1.1205322 :St.' John .4 a 7111379 1878 

